Key changes:

• Add new host-run that allows running commands on host to be displayed on a given qubesome profile.
• Examples were added to the CLI help for most commands.
• Add profile inference to some commands, so that it is more user friendly. So when a single profile is running, users won't need to type them. Example: qubesome clip from-host.
• Profiles have a connection with the qubesome process at the host, which enables it from triggering workload execution from the profile itself. That communication is now established via gRPC based on a Unix socket.